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Finding the Third Proportional to 231,186,772 and 317,019,462

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Solution

The third proportional to 231,186,772 and 317,019,462 is: 434,719,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,186,772 : 317,019,462 = 317,019,462 : x
  2. Step 2: Convert to fraction form
    231,186,772/317,019,462 = 317,019,462/x
  3. Step 3: Cross multiply
    231,186,772x = 317,019,462 × 317,019,462
  4. Step 4: Simplify right side
    231,186,772x = 100,501,339,286,769,440
  5. Step 5: Solve for x
    x = 100,501,339,286,769,440/231,186,772
  6. Step 6: Final answer
    x = 434,719,246.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.